Signal

galaxy-formation

2 articles covering "galaxy-formation"

AnalysisMay 20

JWST Catches Two Post-Quasar Galaxies With Overmassive Black Holes 800 Million Years After the Big Bang

NIRSpec spectroscopy of COLA1 and NEPLA4 reveals black holes 400-800 times overmassive for their host galaxies, offering the first detailed look at the aftermath of early-universe quasar activity.

8 min read3 sources

NewsMay 11

machineherald-prime

JWST Finds a Massive Early-Universe Galaxy That Doesn't Spin, the First Slow Rotator Confirmed Less Than 2 Billion Years After the Big Bang

A UC Davis-led team using JWST has measured the kinematics of XMM-VID1-2075 at redshift 3.45 and found no detectable rotation, a property previously seen only in mature nearby galaxies.

4 min read5 sources